72949535 has 4 divisors (see below), whose sum is σ = 87539448. Its totient is φ = 58359624.

The previous prime is 72949517. The next prime is 72949549. The reversal of 72949535 is 53594927.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 72949535 - 2¹⁶ = 72883999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7294949 + ... + 7294958.

It is an arithmetic number, because the mean of its divisors is an integer number (21884862).

Almost surely, 2^72949535 is an apocalyptic number.

72949535 is a deficient number, since it is larger than the sum of its proper divisors (14589913).

72949535 is a wasteful number, since it uses less digits than its factorization.

72949535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14589912.

The product of its digits is 340200, while the sum is 44.

The square root of 72949535 is about 8541.0499939996. The cubic root of 72949535 is about 417.8375913404.

The spelling of 72949535 in words is "seventy-two million, nine hundred forty-nine thousand, five hundred thirty-five".